Service difficulty report · Floor Support · Boeing 737890

Difficulty date
May 28, 2024
Submitted
June 21, 2024
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
57,193 hours, 17,458 cycles
Part
Floor Support
Part number
141A541017
Condition
Corroded
Location
Bs 328-344 Lbl11
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FWD WET AREA STA 328 - 344 LBL11 FLOOR STIFFNER HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD WET AREA, STA 328-344, LBL 11 FLOOR STIFFENER (PANEL BREAK) REF B737-800 SRM 53-10-51-0I-2. TABLE 3. ITEM 8 PER. B737-800 SRM 53-10-51-1A-A. PAR 4.F,(2) ORIG THICK. 0.080 MAT LOSS 0.054. REMAINING THICK 0.026. OUT OF LIMITS PER B737-800 SRM 53-10-51-1A-1. FIG 105 DETAIL C. REMOVED PANEL BREAK AT STA 328-344 LBL 11 TO F.O.M. PER B737-800 SRM 51-40-02-0G-0. RECIEVED NEW PART. PART # 1092591.5. LOCATED & DRILLED IAW B737-800 SRM 51-40-05. INSTALLED STIFFNER IAW B737-800 SRM 51-40-02 AND IAW BAC DWG 141A5400 REV-. INSTALLED NUT PLATES 4(EACH) PER B737-800 SRM 51-40-10-2R-0 UP TO STEP 4.F.(1), CURE TIME START 8:15. PERFORMED NUT PLATE LOAD TEST IAW B737-800 SRM 50-40-10. LOAD TEST PASSED CURE VERIFIED.